package com.lv.mall.product.service.impl;

import com.lv.common.to.SkuReductionTo;
import com.lv.common.to.SpuBoundTo;
import com.lv.common.utils.R;
import com.lv.mall.product.entity.*;
import com.lv.mall.product.feign.CouponFeignService;
import com.lv.mall.product.service.*;
import com.lv.mall.product.vo.*;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.lv.common.utils.PageUtils;
import com.lv.common.utils.Query;

import com.lv.mall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService spuImagesService;

    @Autowired
    AttrService attrService;

    @Autowired
    ProductAttrValueService attrValueService;

    @Autowired
    SkuInfoService  skuInfoService;

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        //1、保存商品基本信息    spu_info
        SpuInfoEntity infoEntity = new SpuInfoEntity();

        BeanUtils.copyProperties(vo,infoEntity);
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());

        this.saveBaseSpuInfo(infoEntity);
        // 2、保存spu的描述图片 spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(infoEntity.getId());    // 暂时不考虑分布式情况下主键自增策略
        descEntity.setDecript(String.join(",",decript));    // 返回String的字符串
        spuInfoDescService.saveSpuInfoDesc(descEntity);

        // 3、保存spu的图片集  spu_info_images

        List<String> images = vo.getImages();
        spuImagesService.saveImages(infoEntity.getId(),images);

        // 4、保存spu的基本属性（规格参数）pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());

            AttrEntity id = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(id.getAttrName());

            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());   // 1    快速展示
            valueEntity.setSpuId(infoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());
        attrValueService.saveProductAttr(collect);

        // 5、保存spu的积分信息 sms_spu_bounds
        Bounds bounds = vo.getBounds();// 成长积分，购物积分
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds,spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        //判断是否成功
        if (r.getCode() != 0) {
            log.error("远程保存spu积分信息失败");
        }

        // 6、保存spu对应的所有的sku信息
        /*
            1)sku的基本信息  sku_info

            2)sku的图片信息  sku_images
            3)sku的销售属性信息    sku_sale_attr_value
            4)sku的优惠满减等信息   sms库 sms_sku_ladder\sms_sku_full_reduction\sms_member_price
         */
        //6.1
        List<Skus> skus = vo.getSkus();
//        skus.stream().map(sku->{
//            sku.
//        })
        if (skus != null && skus.size() > 0) {
            skus.forEach(item -> {
                String defaultImg = "";
//                item.getImages().forEach(img -> {
//                    if (img.getDefaultImg() == 1) {
//                        defaultImg = img;
//                    }
//                });
                for (Images image : item.getImages()) {
                    if (image.getDefaultImg() == 1) {
                        defaultImg = image.getImgUrl();
                    }
                }
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);   // 默认图片
                skuInfoService.saveSkuInfo(skuInfoEntity);

                // 6.2
                Long skuId = skuInfoEntity.getSkuId();  //自增主键

                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();

                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());

                    return skuImagesEntity;
                }).filter(entity-> {
                    // 返回true需要，返回false过滤掉
                    return  !StringUtils.isEmpty(entity.getImgUrl());   // 没有图片路径的无需保存  解决
                }).collect(Collectors.toList());
                skuImagesService.saveBatch(imagesEntities);

                // 6.3
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);
                    return attrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

                //6.4
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                // 清除无意义数据  compareTo(new BigDecimal(0)) == 1   比较BigDecimal
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal(0)) == 1) {
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    //判断是否成功
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku优惠信息失败");
                    }
                }

            });
        }

    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
        this.baseMapper.insert(infoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {

        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<SpuInfoEntity>();

        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)) {
            wrapper.and((w)-> {
                w.eq("id",key).or().like("spu_name",key);
            });
        }

        String status = (String) params.get("status");
        if(!StringUtils.isEmpty(status)) {
            wrapper.eq("publish_status",status);
        }

        String brandId = (String) params.get("brandId");
        if(!StringUtils.isEmpty(brandId)&&! "0".equalsIgnoreCase(brandId)) {
            wrapper.eq("brand_id",brandId);
        }

        String catalogId = (String) params.get("catelogId");
        if(!StringUtils.isEmpty(catalogId)&& ! "0".equalsIgnoreCase(catalogId)) {
            wrapper.eq("catalog_id",catalogId);
        }
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );

        return new PageUtils(page);
    }


}